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- Teaching beginners to code
- Scratch v2.0
- Scr0320: memory, variables, and
The purpose of this module is to teach you about memory, variables, literals, and algorithms in Scratch 2.0. You will also learn how to write a Scratch program that illustrates the creation and use of variables, case sensitivity, and the ability to detect and respond to mouse and keyboard events.
Table of contents
Preface
Scratch 2.0
(released May 9,
2013) is the second major version of Scratch to be released during the
life of the product. Among other things, it features a redesigned editor andwebsite, and allows you to edit projects directly from your web browser.
This module is one in a collection of modules designed to help beginners of
all ages
(8 and up) learn how to create the code for computer programs
using
Scratch 2.0 . Information is provided
not only for the beginners themselves but also for their parents and teacherswhere appropriate.
The purpose of this module is to teach you about memory, variables, literals, and algorithms
in
Scratch 2.0 .
You will also learn how to write a Scratch program that illustrates the creation and use of variables, case sensitivity, and the ability to detect and respond to mouse and keyboard events.
Student programming projects
In addition to presenting and explaining a Scratch programming project, I will present two student programming projects that are designed to:
- Help the student retain the knowledge gained by studying the module.
- Require the student to think beyond the material presented in the module
by requiring the student to answer the question "How do I ...?"
Viewing tip
I recommend that you open another copy of this module in a separate
browser window and use the following links to easily find and view the imageswhile you are reading about them.
Images
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Image 1 . Cropped image of the Scratch
programming interface for the program named Variable01.
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Image 2 . Dialog for entering a variable name.
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Image 3 . Programming blocks in the Events category.
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Image 4 . Example blocks with pointed ends.
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Image 5 . Output from Project 1.
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Image 6 . Output from Project 1.
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Image 7 . Output from Project 2.
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Image 8 . Output from Project 2.
Questions & Answers
how does Neisseria cause meningitis
is the branch of biology that deals with the study of microorganisms.
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
How bacteria create energy to survive?
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
which site have a normal flora
Many sites of the body have it
Skin
Nasal cavity
Oral cavity
Gastro intestinal tract
Safaa
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Binomial nomenclature
adeolu
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Source:
OpenStax, Teaching beginners to code. OpenStax CNX. May 27, 2013 Download for free at http://cnx.org/content/col11498/1.20
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